Buy Ambien 5mg online Zolpidem online is the other name of a generic Ambien and belongs to the sedative-hypnotic drug class it affects the brain chemicals in the brain that may be unbalanced in people with sleep problems. Also, the drug comes in an immediate version and an extended-release version. The immediate-release version of this pill is used to help you fall asleep. Apart from this, the extended-release version contains two layers the first layer dissolves quickly to help you fall asleep. And the second layer dissolves slowly to help you stay asleep. However, your healthcare determines which form is good for your health, therefore, take it only after the doctor's solution.